Home / 5,242.60-7,863.66-1,779.82

Finding the Fourth Proportional to 5,242.60, 7,863.66 and 1,779.82

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Solution

The fourth proportional to 5,242.60, 7,863.66 and 1,779.82 is: 2,669.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,242.60 : 7,863.66 = 1,779.82 : x
  2. Step 2: Convert to fraction form
    5,242.60/7,863.66 = 1,779.82/x
  3. Step 3: Cross multiply
    5,242.60x = 7,863.66 × 1,779.82
  4. Step 4: Simplify right side
    5,242.60x = 13,995,899.34
  5. Step 5: Solve for x
    x = 13,995,899.34/5,242.60
  6. Step 6: Final answer
    x = 2,669.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.